Slow Cooker Blueberry Butter By Monica makes 8-9 half-pints Print recipe Pin recipe on Pinterest An easy, flavorful spread for toast, bagels and biscuits or a mix-in for yogurt and oatmeal. Suitable for canning. Use printable labels for giftable jars. Ingredients 14 cups (4-5 lbs) blueberries 1 3/4 cups granulated white sugar 1 3/4 cups brown sugar 1 lemon, zested and juiced 1 tablespoon ground cinnamon 3/4 teaspoon ground nutmeg Directions Put 2 or 3 small plates in ...