Place your fresh or thawed frozen berries in a small bowl. Use a fork to mash them until they reach a chunky, jam-like consistency. If you prefer a smoother jam, you can briefly pulse them in a blender.
Stir in the chia seeds, vanilla protein powder, vanilla extract, and your sweetener of choice. Mix thoroughly until the protein powder is fully integrated and no dry clumps remain.
Let the mixture sit for at least 5 to 10 minutes. The chia seeds will absorb the moisture from the berries and thicken the mixture into a spreadable jam. This is a great time to prepare your toast.
Place your bread slices in a toaster or under a broiler until they are golden brown and crisp. A sturdier bread like sourdough works best to support the weight of the toppings.
If using, spread a thin layer of Greek yogurt or nut butter onto each slice of toast first. Generously spoon the vanilla berry protein chia jam over the top. Garnish with fresh mint or a few whole berries and enjoy immediately.