Red Velvet Brownie Torte

Name: Red Velvet Brownie Torte
Ingredients: Cooking spray; 1 1/4 cups (21⁄2 sticks) unsalted butter; 1 3/4 cups granulated sugar; 2/3 cup packed light brown sugar; 4 tsp. red food coloring gel; 2 tsp. pure vanilla extract; 5 large eggs, at room temperature; 1 1/4 cups all-purpose flour; 1 cup unsweetened cocoa powder; 1 tsp kosher salt; 3/4 tsp baking powder