Pour 2 cups of heavy whipping cream into your stand mixer bowl, food processor, or mason jar. Using cold cream helps speed up the process and yields better results.
Turn your mixer to medium speed or shake the mason jar vigorously. Initially, the cream will turn into whipped cream. Continue whipping, and soon the fats will separate from the liquid (buttermilk).
Timing: This stage can take 5-10 minutes with a mixer or up to 20 minutes with a mason jar.
Once the fats separate, strain the buttermilk from the solids using a fine mesh strainer or cheesecloth. Reserve the buttermilk for baking or cooking—it’s a tasty byproduct!
To extend the shelf life, rinse the butter under cold water. Knead it gently with a wooden spoon or your hands, rinsing until the water runs clear. This removes residual buttermilk that can cause spoilage.
If you prefer salted butter, mix in ½ teaspoon of salt. For flavored butter, now’s the time to fold in herbs, garlic, or citrus zest.
Transfer your butter to an airtight container or wrap it in parchment paper. It can be stored in the refrigerator for up to 2 weeks or frozen for longer shelf life.