To prepare a vegan raspberry chocolate tarts recipe, first you need to prepare the ingredients. First, you'll need the following ingredients: 14 cup granulated sugar 2 tablespoons cocoa powder 1 tablespoon vanilla extract 1 teaspoon baking powder 2 teaspoons baking soda Preheat the oven to 375 degrees F (190 degrees C) Grease and flour two 9-inch tart pans and line with parchment paper. Set aside. In another large mixing bowl, combine the flour, sugar, and salt. Gradually add the wet ingredients to the dry ingredients, mixing well after each addition. Pour the batter into the prepared tart shells. Bake for 20 to 25 minutes or until the edges are golden brown. Remove from oven and allow to cool before serving.