Chocolate-Mixed Berry Baked Custard

Preheat the oven to 375 degrees F (190 degrees C). Use 1 tablespoon butter to grease a 9x13-inch pan.

Scatter thawed berries and chopped dark chocolate evenly over the bottom of the pan. Set aside.

Whisk together flour, sugar, cocoa powder, salt, and cinnamon in a large bowl until thoroughly combined. Add in eggs, and whisk until mixture is smooth and free of lumps. Mix in 2 tablespoons melted butter, vanilla, and almond extracts. Gradually pour in milk and heavy cream, whisking constantly, until incorporated. Pour batter over berries and chocolate in the prepared pan.