Step 1
In a medium bowl, resealable container, or 12-ounce Mason jar, stir together the oats, milk, coffee, nut butter, chia seeds, vanilla extract, cinnamon, and salt (and honey or maple syrup, if using). Cover and refrigerate for at least 6 hours, up to 48 hours.
Step 2
Serve the oatmeal cold or at room temperature, or uncover and warm in the microwave. Just before serving, drizzle with additional nut butter and garnish with desired toppings.