Aunt Sarah makes this 3 ingredient treat every spring and my kids literally fight over the corner pieces.

This 3-ingredient peanut butter fudge is exactly the kind of recipe I pull out every spring when life feels extra busy but I still want to make something special for my kids. It’s based on my Aunt Sarah’s no-fail fudge, the one she’d whip up in a glass casserole dish while we were still clearing the dinner table. It sets in the fridge incredibly fast—by the time you rinse the mixing bowl, it’s already firming up.

The texture is smooth and creamy with those slightly uneven, hand-cut edges that make it feel homemade and nostalgic. If you need a quick treat for a school event, family get-together, or just a random Tuesday, this fudge is as easy as it gets and always disappears first.

Serve the peanut butter fudge chilled, cut into small squares or corner pieces (the most fought-over spots in my house) on a simple platter or right out of the glass casserole dish. It pairs perfectly with a cold glass of milk, hot coffee, or tea.

For a spring gathering, I like to mix it onto a dessert tray with fresh berries and a few store-bought cookies to balance the sweetness. It also travels well—just cover the dish tightly and keep it cool, and you’ve got a crowd-pleasing treat ready for potlucks, playdates, or office snack tables.

3-Ingredient Peanut Butter Fudge

Servings: 16

Ingredients
1 cup (2 sticks / 226 g) unsalted butter
1 cup (260 g) creamy peanut butter (no-stir style)
3 1/2 to 4 cups (420–480 g) powdered sugar, sifted if lumpy
Nonstick cooking spray or a little extra butter for greasing the dish (optional)
Directions