1-Getting started: Getting started with this golden crostata is simple and fun, beginning with basic prep work. First, preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper for easy cleanup. In a bowl, combine the flour and cold butter by rubbing them together until the mixture turns crumbly, which helps create that ideal flaky texture.

2-Next, add two tablespoons of cold water to the dough mixture and stir until it forms a cohesive ball. Shape the dough into a disc and refrigerate it for at least 10 minutes to make it easier to handle. While the dough chills, prepare the filling by tossing the strawberries, raspberries, blueberries, cornstarch, sugar, and lemon juice together in a separate bowl.

3-Once chilled, roll the dough into a 12-inch circle on the prepared baking sheet. Place the berry filling in the center, leaving a two-inch border. Fold the edges of the dough over the filling to create a rustic look. Whisk the egg with the remaining tablespoon of cold water and brush it over the dough edges, then sprinkle with additional sugar for a nice finish.

4-Bake the crostata for 30 to 35 minutes until the crust turns golden brown. Let it cool for five minutes before slicing, and serve warm with ice cream or whipped cream if you like. This method ensures even baking and a delicious result every time. For calorie-conscious options, refer to details on mixed berry nutrition to see how it fits your diet.