"A tasty cinnamon-y single-serve mug coffee cake made in the microwave...."
INGREDIENTS
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1 tbls butter
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2 tbls sugar
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1 egg (or 1/2 egg)
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1 tbls sour cream(or yogurt, if that's what you have)
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Few drops of vanilla
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1/4 cup flour
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1/8 tsp baking powder
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1 tbls butter
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2 tbls flour
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1 tbls brown sugar
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1 tsp cinnamon
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