Strawberry Vanilla Cupcakes

I've been experimenting with making cupcakes from scratch lately.  I figure I'll conquer the actual cupcake, then go on to icing, toppings, etc, so for now I am still using store bought icing.  My chocolate cupcakes are great, but I am struggling a bit to develop a good vanilla cupcake recipe.  The flavor of these was good, but they turned out a little dry.  I think they main issue was that I over-baked them, so I may try them again at some point.

Ingredients

• 8 tablespoons butter or margarine, softened
• 3/4 cup sugar
• 1 1/2 teaspoons vanilla extract
• 2 large eggs
• 1 1/2 cups self-rising flour
• Duncan Hines Frosting Creations Strawberry Shortcake frosting
• fresh strawberries, sliced

Directions

1. Preheat oven to 375.  Line cupcake trays with paper liners
2. Beat butter and sugar until light and fluffy.
3. Add vanilla extract
4. Beat in eggs one at a time
5. Fold flour into mixture
6. Spoon into cupcake trays and bake 12-15 minutes
7. Allow to cool
8. Mix frosting per directions on can and frost cupcakes
9. Add two slices of fresh strawberries to each cupcake