Easy Sheet Pan Pancakes

0 Preheat the oven to 400°F. Grease a 9×13-inch baking pan or line it with parchment paper.
1 In a large bowl, whisk together the flour, sugar, collagen peptides (optional), baking powder, and sea salt.
2 Add the milk, eggs, melted butter, and vanilla extract.
3 Stir just until combined. Be careful not to overmix the batter.
4 Pour the pancake batter into the prepared pan and spread it into an even layer.
5 Bake for 15–18 minutes, or until the center is set and the edges are lightly golden.
6 Allow to cool slightly, then slice into squares.
7 Serve warm with butter, maple syrup, fresh berries, or your favorite pancake toppings.