Begin by preheating your oven to 170°C (340°F). It's essential for achieving the perfect bake for your blondies.

Prepare a baking pan measuring 32x23 cm (about 12.5x9 inches) by lining it with parchment paper to prevent sticking.

In a mixing bowl, combine 3 eggs with 170 grams of brown sugar and 80 grams of white sugar.

Using an electric mixer, beat the mixture for about 1-2 minutes until it becomes thick, glossy, and white. This incorporation of air will help give your blondies a lovely texture.

Next, add 160 grams of melted unsalted butter at a temperature of 50°C (122°F) and 125 grams of melted white chocolate at 35°C (95°F).

Gently mix until the batter is smooth and well combined, ensuring the butter and chocolate are thoroughly integrated with the egg mixture.

Sift in 220 grams of all-purpose flour and stir until just combined — be careful not to overmix.

Now, fold in 150 grams of strawberries, whether they're fresh or frozen, cutting them into smaller pieces if needed. Quickly combine them into the batter for flavor and texture.

Transfer the batter into your prepared baking pan and spread it out evenly.

Bake in the preheated oven for 28-35 minutes, or until a toothpick inserted in the center comes out with moist crumbs. The edges should be set while the center remains slightly soft, which is key to that fudgy consistency.

Once baked, allow the blondies to cool in the pan for a minimum of 1 hour. For the best results, let them cool completely before slicing.

After cooling, cut them into squares and enjoy your delicious white chocolate strawberry blondies!