Cheesy onion biscuit with avocado, crispy potato, and egg | Recipe | Bounded by Buns

Ingredients

• 300 grams self-rising flour (2.5 cups)
• 1 stick of frozen butter (grated)
• 1 cup cold buttermilk
• 2 tablespoons melted butter (to be painted on top after baking)
• 2 to 3 tablespoons olive oil
• 2 to 3 tablespoons balsamic vinegar
• 6 to 8 thin slices of onion (about half an onion)
• pinch of salt and pepper
• 3/4 to 1 cup shredded cheese (cheddar or Monterey Jack works well)
• 1 whole egg
• 8 tater tots (thawed)
• 1 tablespoon butter
• 3 or 4 slices of avocado
• hot sauce (optional)