Begin by preheating your oven to 350°F (175°C). This step is crucial because it ensures that your cupcakes bake evenly and rise beautifully.
Line a standard cupcake tin with paper liners.
In a large mixing bowl, combine 1 ½ cups of all-purpose flour, 1 teaspoon of baking powder, and ½ cup of granulated sugar. Whisk these ingredients together until they are well blended.
Create a well in the center of your dry ingredients. Pour in 1 cup of grape juice, ½ cup of vegetable oil, 2 large eggs, and 1 teaspoon of vanilla extract. Mix everything together until the batter is smooth.
Fold in ½ cup of chopped fresh grapes if desired.
Fill each cupcake liner about two-thirds full with batter.
Bake for 18-20 minutes or until a toothpick inserted comes out clean.
Let the cupcakes cool in the tin for about 5 minutes, then transfer to a cooling rack.
Frost with your favorite frosting and top with fresh grapes if desired.
Serve and enjoy your Luscious Grape Crush Cupcakes!