Pineapple Muffins

We've been snowed/iced in for days now and it's been grey and dreary.  I thought I'd whip up a batch of these summery muffins to brighten our day.

2 cups flour
1/2 cup white sugar
1 tablespoon baking powder
1/2 teaspoon salt
1 (8 ounce) can crushed pineapple
1 egg, beaten
1/2 tsp. pineapple flavoring (find it by the vanilla extract)
3/4 cup milk
1/4 cup butter, melted

Topping:
1/4 cup butter, melted
1/4 teaspoon ground cinnamon
1/3 cup packed brown sugar
1/2 cup all-purpose flour

Preheat the oven to 375 degrees.  Grease and flour muffin pans, or line with paper liners.               

In a large bowl, stir together 2 cups flour, white sugar, baking powder and salt. Make a well in the center of the dry ingredients, and pour in the pinapple, egg, milk, pineapple extract and 1/4 cup melted butter. Mix just until blended.               

In a separate bowl, stir together the cinnamon, brown sugar, 1/2 cup flour, and 1/4 cup melted butter to make the topping.

Spoon batter into muffin cups and sprinkle with the topping mixture, crumbling it up a bit as needed.

Bake for 30 minutes in the preheated oven, until a toothpick inserted in the crown of the muffin comes out clean.               

*I found that the paper liners stuck a bit to my muffins, but once they were cooled completely they came off cleanly.