These oven baked 3-ingredient crispy potato crostini are the kind of easy party bite that disappears fast, especially when you need something warm, cheesy, and crowd-pleasing without much fuss. They are a simple twist on crostini, using thick potato slices instead of bread, and the result is a crispy-edged, tender-centered base topped with melty cheddar that feels just right for game day, casual family get-togethers, or an easy snack tray.
Serve these with a bowl of sour cream, ranch, or a simple chive dip for dipping, and pair them with wings, chili, sliders, or a fresh veggie tray for a full watch-party spread. They also work nicely alongside soup or salad if you want to turn them into a fun side dish for supper.
Oven Baked 3-Ingredients Crispy Potato Crostini
Servings: 6
Ingredients
2 large russet potatoes, scrubbed and sliced into 1/2-inch thick rounds
Directions
1. Preheat your oven to 425°F and line a baking sheet with parchment paper. Slice the potatoes into thick, even rounds so they cook at the same rate.
2. Pat the potato slices dry, then brush both sides lightly with olive oil. Arrange them in a single layer on the prepared baking sheet.
3. Bake for 20 minutes, then flip each slice and bake for 10 to 15 minutes more, until the potatoes are tender inside and crisp and golden around the edges.
4. Sprinkle shredded cheddar evenly over each potato slice and return the pan to the oven for 3 to 5 minutes, just until the cheese is melted and bubbly.
5. Transfer to a platter and serve right away while hot and crispy.
Variations & Tips
For extra crispiness: After slicing, soak the potatoes in cold water for 20 to 30 minutes, then dry them very well before oiling. This helps remove some starch and can give you even crispier edges.
For picky eaters: Try using a mild cheddar or even a mozzarella-cheddar blend if your family likes a softer cheese flavor. Keeping the topping simple makes these especially kid-friendly.
For easy seasoning: Even though the base recipe is just 3 ingredients, you can add a light sprinkle of salt, black pepper, garlic powder, or paprika right before baking if you want a little more flavor.
For make-ahead prep: Slice the potatoes a few hours early and keep them in cold water in the refrigerator. Dry and bake them just before serving so they stay crisp and fresh.
For topping ideas: Once baked, you can finish them with chopped chives, crumbled bacon, or a tiny dollop of sour cream if you want them to feel more like loaded potato bites for a party platter.
