Homemade Slow Cooker Maple Apple Butter

Bahan-bahan (6 porsi)

• 4 pounds Honeycrisp apples, cored and diced
• 1 1/4 cups apple cider
• 1/2 cup real maple syrup
• 1 teaspoon vanilla extract
• 2 teaspoons cinnamon or 1-2 cinnamon sticks
• 1/2 teaspoon freshly grated nutmeg
• 1 pinch ground cloves ((about 1/4 teaspoon))
• 1 pinch sea salt or kosher salt