Cold-weather favorite': Just 5 ingredients. I’ve made it enough times to eyeball everything.

To make this brownie pie your own, you can stir in 1/2–3/4 cup of chocolate chips, chopped nuts, or even crushed pretzels right before baking for extra texture and flavor. If you like things a little more decadent, swirl 2–3 tablespoons of peanut butter or Nutella over the top of the batter with a knife before it goes into the oven. For a slightly less sweet version, reduce the sugar to 3/4 cup and add an extra pinch of salt. If you need to prep ahead, bake the pie the night before, let it cool completely, then cover tightly and store at room temperature; rewarm slices in the microwave for 10–15 seconds to bring back the fudginess. You can also turn this into mini brownie pies by dividing the batter among greased muffin cups and baking for 12–15 minutes—great for portion control and lunchbox treats.