Sticky Butterscotch and Walnut Muffins

• 100 grams melted butter
• 1/2 cup brown sugar
• 1/2 cup chopped walnuts
• 2 cups flour
• 4 teaspoons baking powder
• 3/4 cup sugar
• 100 grams butter
• 1 large egg
• 1 cup milk

1. Mix melted butter, brown sugar and walnuts. Divide evenly between 12 muffins cases. 
2. Mix together flour, baking powder and sugar. 
3. Melt second measure of butter, and milk and egg. Mix well. 
4. Make a well in the middle of the dry ingredients and stir in the milk, egg and butter mixture. 
5. Combine gently - mixture should still be lumpy.
6. Cook at 220 degrees Celsius for 10-12 minutes.