Cappuccino Muffins

I am a big coffee & chocolate lover...so I absolutely LOVED these!

Ingredients
2 cups all-purpose flour
1/2 cup sugar
1/2 cup packed brown sugar
2 teaspoons baking powder
2 teaspoons instant coffee
1 teaspoon ground cinnamon
1/4 teaspoon salt
1 egg
1 cup milk
1/2 cup butter, melted
1 teaspoon vanilla extract
1 cup miniature semisweet chocolate chips

Topping: (Optional)
6 tablespoons all-purpose flour
1/4 cup packed brown sugar
1/2 teaspoon ground cinnamon
1/4 cup cold butter

Directions
1) In a large bowl, combine the flour, sugars, baking powder, coffee, cinnamon and salt.
2) In separate bowl, whisk the egg, milk, butter and vanilla.
3) Stir egg mixture into the dry ingredients just until moistened. Fold in chocolate chips.
4) Fill greased or paper-lined muffin cups three-fourths full.
5) For the topping...combine the flour, brown sugar and cinnamon in a small bowl. Mix in small pieces of the butter until mixture resembles coarse crumbs.
6) Sprinkle topping over batter. Bake at 375 degrees F for about 20 minutes or until a toothpick comes out clean.