Hazelnut Coffee Cupcakes - Cupcake Fanatic

Ingredients

• 1 cup hazelnuts
• 2 teaspoons vegetable oil
• 1 cup sugar
• 1 3/4 cups all-purpose flour
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 teaspoon instant coffee (use 2 teaspoons if you prefer stronger coffee)
• 1/4 cup unsalted butter, room temperature
• 2 large eggs
• 2/3 cup whole milk
• 8 ounces mascarpone cheese
• 1/2 teaspoon vanilla extract
• 1 cup powdered sugar