Ingredients
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1 (6 oz) container blueberries
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2 sticks unsalted butter, softened
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1 tbsp dark brown sugar
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1/2 tsp cinnamon
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1/8 tsp salt
Steps
1
In a bowl with a potato masher, mash the blueberries. Transfer to a strainer and drain any excess liquid.
2
With a stand or hand mixer, beat the butter, brown sugar, cinnamon, and salt until fluffy and smooth. Add blueberries and beat until just incorporated. Transfer butter to an airtight container and refrigerate until firm.
