Heat oven to 350 degrees F. Grease muffin cups or use paper liners.

Mix flour, baking powder, salt and cinnamon in a small bowl. Beat butter and sugar in a large bowl with a wooden spoon or electric mixer. Beat in egg. Add flour mixture to egg mixture about one third at a time, alternating with milk and ending with flour. Stir just until blended. Fold in raisins.

Mix topping ingredients in a small bowl. Scoop batter into muffin cups and sprinkle with topping. Bake about 20 minutes or until springy to the touch in the center.