Ingredients

For the batter

200 ml milk
140 grams all-purpose flour
4 eggs
black pepper and salt to taste
We recommend:
For milk:
Prime Hoosier Hill Farm Whole Milk Powder, 2LB (Pack of 1)
4.6
(14,536) Hoosier Hill Farm Whole Milk Powder, 2LB (Pack of 1) $21.99 View details Prime best seller Silk Shelf-Stable Almond Milk, Unsweetened Vanilla, Dairy-Free, Vegan, Non-GMO Project Verified, 1 Quart (Pack of 6)
4.7
(19,270) Silk Shelf-Stable Almond Milk, Unsweetened Vanilla, Dairy-Free, Vegan, Non-GMO Project Verified, 1 Quart (Pack of 6) $12.98 View details
For all-purpose flour:
Prime Bob's Red Mill Gluten Free 1-to-1 Baking Flour, 22 Ounce (Pack of 4)
4.8
(9,312) Bob's Red Mill Gluten Free 1-to-1 Baking Flour, 22 Ounce (Pack of 4) $23.96 View details Prime Antimo Caputo Chefs Flour - Italian Double Zero 00 - Soft Wheat for Pizza Dough, Bread, & Pasta, 2.2 Lb (Pack of 2)
4.7
(15,802) Antimo Caputo Chefs Flour - Italian Double Zero 00 - Soft Wheat for Pizza Dough, Bread, & Pasta, 2.2 Lb (Pack of 2) $16.99 View details Prime best seller King Arthur, Measure for Measure Flour, Certified Gluten-Free, Non-GMO Project Verified, Certified Kosher, 3 Pounds, Packaging May Vary
4.7
(20,691) King Arthur, Measure for Measure Flour, Certified Gluten-Free, Non-GMO Project Verified, Certified Kosher, 3 Pounds, Packaging May Vary $8.62 View details

For the red pickled onion

1 red onion
1 tablespoon sugar
1 teaspoon salt
1 part vinegar (red or apple)
1 part water
We recommend:
For red onion:
US-FARMERS Natural Premium Granulated Onion in Jar, 6 LB
4.7
(143) US-FARMERS Natural Premium Granulated Onion in Jar, 6 LB $34.99 View details Prime Litehouse Freeze Dried Red Onion - Fresh Red Onion Substitute, Gluten Free, Vegetarian, Keto, Non-GMO, No Refrigeration Required, Seasonings for Cooking - 0.60 Oz, 2-Pack
4.7
(2,410) Litehouse Freeze Dried Red Onion - Fresh Red Onion Substitute, Gluten Free, Vegetarian, Keto, Non-GMO, No Refrigeration Required, Seasonings for Cooking - 0.60 Oz, 2-Pack $13.49 View details
For sugar:
Prime Judee's Superfine Caster Sugar - 5 lbs - Delicious and 100% Gluten-Free - Bakers Sugar for Homemade Treats, Baked Goods, and Toppings - Airy and Smoot
4.8
(3,527) Judee's Superfine Caster Sugar - 5 lbs - Delicious and 100% Gluten-Free - Bakers Sugar for Homemade Treats, Baked Goods, and Toppings - Airy and Smoot $24.99 View details
For salt:
Prime Light Grey Celtic Sea Salt 5 Pound Resealable Bag – Additive-Free, Delicious Sea Salt, Perfect for Cooking, Baking and More - Gluten-Free, Non-GMO Verified, Kosher and Paleo-Friendly
4.7
(15,321) Light Grey Celtic Sea Salt 5 Pound Resealable Bag – Additive-Free, Delicious Sea Salt, Perfect for Cooking, Baking and More - Gluten-Free, Non-GMO Verified, Kosher and Paleo-Friendly $46.50 $46.99 View details Prime best seller Fine Ground Celtic Sea Salt – 16 Ounce (Pack of 1) Resealable Bag of Nutritious, Classic Sea Salt, Great for Cooking, Baking, Pickling, Finishing and More, Pantry-Friendly, Gluten-Free
4.8
(27,022) Fine Ground Celtic Sea Salt – 16 Ounce (Pack of 1) Resealable Bag of Nutritious, Classic Sea Salt, Great for Cooking, Baking, Pickling, Finishing and More, Pantry-Friendly, Gluten-Free $17.05 View details Prime Redmond Real Sea Salt - Natural Unrefined Gluten Free Fine, 10 Ounce Shaker (2 Pack)
4.8
(19,480) Redmond Real Sea Salt - Natural Unrefined Gluten Free Fine, 10 Ounce Shaker (2 Pack) $12.79 View details

For the sauce

4 tablespoons mayonnaise
1 teaspoon mustard
We recommend:
For mayonnaise:
Prime Kewpie Mayonaise, 17.64-Ounce Tubes (Pack of 2)
4.7
(6,634) Kewpie Mayonaise, 17.64-Ounce Tubes (Pack of 2) $11.74 View details Dukes Mayonnaise 30 oz, Jar Smooth & Creamy (2 pack), by Litezout
4.9
(10) Dukes Mayonnaise 30 oz, Jar Smooth & Creamy (2 pack), by Litezout $26.63 View details Prime Japanese Kewpie Mayonnaise Umami Squeez Bottle - 17.64 oz. (Pack of 3)
4.8
(166) Japanese Kewpie Mayonnaise Umami Squeez Bottle - 17.64 oz. (Pack of 3) $26.84 View details
For mustard:
Prime best seller Heinz 100% Natural Spicy Brown Mustard (14 oz Bottle)
4.7
(18,802) Heinz 100% Natural Spicy Brown Mustard (14 oz Bottle) $2.89 View details Prime 365 by Whole Foods Market, Mustard German Organic, 8 Ounce
4.5
(16,870) 365 by Whole Foods Market, Mustard German Organic, 8 Ounce $2.60 $3.03 View details

Additional ingredients

herring for filling
fresh herbs or microgreens for serving

Instructions

Step 1

Prepare the batter

In a mixing bowl, combine 200 ml of milk, 140 grams of all-purpose flour, and 4 eggs.

Season the mixture with black pepper and salt according to your taste.

Whisk thoroughly until you have a smooth batter. Preheat your oven to 200°C (392°F).

Pour the batter into a greased baking dish and bake for 40 minutes.

Step 2

Prepare the baking dish

Pour 0.5-0.8 mm of vegetable oil at the bottom of each baking form.

Heat the oil in the oven for 5-7 minutes at 200°C (392°F) to ensure it is hot before adding the batter.

Step 3

Pickle the red onion

Thinly slice 1 red onion and place it in a bowl.

Add 1 tablespoon of sugar and 1 teaspoon of salt to the onion.

Mix equal parts of vinegar (red or apple) and water to completely cover the onion slices.

Let them marinate for at least 30 minutes before using.

Step 4

Make the sauce

In a small bowl, blend together 4 tablespoons of mayonnaise and 1 teaspoon of mustard.

This will be a tasty complement to your dish.

Step 5

Assemble and serve

Once the batter is baked and slightly cooled, you may fill it with herring.

Top with the pickled red onion and drizzle the prepared sauce over the top.

Garnish with fresh herbs or microgreens for a delightful presentation.

Servings

For a stunning presentation, serve your delicious snack with a sprinkle of fresh herbs or microgreens 🌱. Not only does this add a vibrant color, but it also enhances the flavor. You can also pair it with a side of crunchy vegetables or chips for a delightful texture contrast! ✨

If you're feeling adventurous, try adding smoked salmon or pickles to the filling for an extra flavor kick. Don't forget to whip up a batch of festive drinks to accompany this tasty treat — your guests are sure to enjoy!

Equipment

Baking Dish

A medium-sized baking dish is perfect for this recipe. Ensure it's well-greased with oil to avoid sticking!

We recommend:
Prime OXO Good Grips Glass 3 Qt Baking Dish with Lid
4.7
(16,201) OXO Good Grips Glass 3 Qt Baking Dish with Lid $22.99 View details Prime best seller Pyrex Easy Grab 2-Pack Glass Baking Dish Set (2QT, 3QT) with Snug Fit Locking BPA-Free Lids, Rectangular Bakeware Set, Dishwasher, Microwave, Freezer & Pre-Heated Oven Safe
4.7
(12,951) Pyrex Easy Grab 2-Pack Glass Baking Dish Set (2QT, 3QT) with Snug Fit Locking BPA-Free Lids, Rectangular Bakeware Set, Dishwasher, Microwave, Freezer & Pre-Heated Oven Safe $15.98 $24.99 View details Prime Pyrex Deep 5.2-Qt (9"x13") 2-in-1 Glass Baking Dish with Glass Lid, Extra Large Rectangular Baking Pan For Casserole & Lasagna, Dishwasher, Freezer, Microwave and Pre-Heated Oven Safe
4.7
(6,500) Pyrex Deep 5.2-Qt (9"x13") 2-in-1 Glass Baking Dish with Glass Lid, Extra Large Rectangular Baking Pan For Casserole & Lasagna, Dishwasher, Freezer, Microwave and Pre-Heated Oven Safe $26.46 $32.99 View details
Mixing Bowl

Using a large mixing bowl will help you combine all your ingredients easily. A whisk will come in handy for a smooth batter!

We recommend:
Prime YIHONG 7 Piece Mixing Bowls with Lids for Kitchen, Stainless Steel Mixing Bowls Set Ideal for Baking, Prepping, Cooking and Serving Food, Nesting Metal Mixing Bowls for Space Saving Storage
4.7
(9,737) YIHONG 7 Piece Mixing Bowls with Lids for Kitchen, Stainless Steel Mixing Bowls Set Ideal for Baking, Prepping, Cooking and Serving Food, Nesting Metal Mixing Bowls for Space Saving Storage $27.99 $35.99 View details Prime best seller Pyrex Glass, 3-Piece, 3 PC Mixing Bowl Set
4.8
(29,369) Pyrex Glass, 3-Piece, 3 PC Mixing Bowl Set $17.53 View details Prime REGILLER Stainless Steel Mixing Bowls (Set of 5), Non Slip Colorful Silicone Bottom Nesting Storage Bowls, Polished Mirror Finish For Healthy Meal Mixing and Prepping 1.5-2 - 2.5-3.5 - 7QT (Colorful)
4.8
(8,743) REGILLER Stainless Steel Mixing Bowls (Set of 5), Non Slip Colorful Silicone Bottom Nesting Storage Bowls, Polished Mirror Finish For Healthy Meal Mixing and Prepping 1.5-2 - 2.5-3.5 - 7QT (Colorful) $26.99 View details
Knife and Cutting Board

To slice the onions, a sharp knife will make your task easier and safer.

We recommend:
Prime SMIRLY Wooden Cutting Boards For Kitchen - Bamboo Cutting Board Set with Holder, Wood Cutting Board Set, Cutting Board Wood, Wooden Chopping Board, Wooden Cutting Board Set
4.6
(14,948) SMIRLY Wooden Cutting Boards For Kitchen - Bamboo Cutting Board Set with Holder, Wood Cutting Board Set, Cutting Board Wood, Wooden Chopping Board, Wooden Cutting Board Set $45.99 View details Prime Smart Cutting Board and Knife Set - Self Cleaning Cutting Board Set with 4 Color Coded Cutting Boards, 4 Stainless Steel Knives - Drying Holder Organizer for Kitchen
4.6
(73) Smart Cutting Board and Knife Set - Self Cleaning Cutting Board Set with 4 Color Coded Cutting Boards, 4 Stainless Steel Knives - Drying Holder Organizer for Kitchen $139.99 View details
Oven Thermometer

Make sure your oven is at the right temperature to bake perfectly fluffy treats. An oven thermometer can help with accuracy!

We recommend:
Prime CHEF iQ Sense Smart Wireless Meat Thermometer with 3 Ultra-Thin Probes, Unlimited Range Bluetooth Meat Thermometer, Digital Food Thermometer for Remote Monitoring of BBQ Grill, Oven
4.3
(2,661) CHEF iQ Sense Smart Wireless Meat Thermometer with 3 Ultra-Thin Probes, Unlimited Range Bluetooth Meat Thermometer, Digital Food Thermometer for Remote Monitoring of BBQ Grill, Oven $139.99 $219.99 View details Prime Meat Thermometer Digital Wireless, 800FT Long Range Bluetooth Cooking Thermometer, Food Thermometer for Remote Monitoring of Grill, Oven, Smoker, Air Fryer, Rotisserie, iOS & Android App
5
(37) Meat Thermometer Digital Wireless, 800FT Long Range Bluetooth Cooking Thermometer, Food Thermometer for Remote Monitoring of Grill, Oven, Smoker, Air Fryer, Rotisserie, iOS & Android App $99.99 $139.99 View details Prime Wireless Bluetooth Smart Meat Thermometer: Standalone Base, WiFi Unlimited Range, 6 Sensors with NIST Certified Accuracy, 2 Probes, for BBQ, Grill, Oven, Smoker, Rotisserie (Red)
4.6
(78) Wireless Bluetooth Smart Meat Thermometer: Standalone Base, WiFi Unlimited Range, 6 Sensors with NIST Certified Accuracy, 2 Probes, for BBQ, Grill, Oven, Smoker, Rotisserie (Red) $120.00 $149.99 View details

Variations

Want to make this recipe suitable for everyone? Here are some delicious variations! 🌍
Gluten-Free: Substitute regular flour with gluten-free flour blend to make a flawless gluten-free version of this snack! Just ensure all your additional ingredients are gluten-free as well.

Vegan: To make this a vegan delight, replace the eggs with flaxseed meal (1 tbsp flaxseed meal + 3 tbsp water per egg), and opt for a plant-based mayonnaise. You won’t miss the eggs at all — it will be just as tasty! 🌱

Faq

  • Can I use any type of milk for this recipe?

    Yes! Feel free to use dairy or plant-based milk according to your preference.

  • How can I tell if my snack is done baking?

    The top should be golden brown and a toothpick inserted in the center should come out clean.

  • Is it necessary to marinate the onions?

    While marinating adds extra flavor, you can skip this step if you're short on time — just slice and serve!

  • Can I keep leftovers in the fridge?

    Absolutely! Store any leftovers in an airtight container for up to 3 days, but enjoy them fresh for the best taste!

  • What can I use instead of mayonnaise?

    You can try Greek yogurt or a dairy-free alternative such as avocado for a healthier sauce!

  • How do I prevent the bottom from burning?

    Make sure to grease your baking dish well, and keep an eye on your snack as it bakes — more oil can help if you're worried!

Nutrition facts

New Year Appetizer with Red Pickled Onion
Recipe Yield:4 servings
Calories:Approximately 350 to 450 calories per serving.
Calories (Min - Max):350 - 450
Total Fat:22g
Saturated Fat:3g
Protein:12g
Total Carbohydrate:40g
Total Sugars:5g