In a large mixing bowl, combine the quark cheese, whole wheat flour, baking powder, and cinnamon. Mix well to break up any lumps from the quark.
In another bowl, whisk together the eggs, milk, honey or maple syrup, and vanilla extract until smooth.
Pour the wet mixture into the dry mixture and stir until just combined, being careful not to overmix. If the batter feels too thick, add a splash of additional milk to reach a pourable consistency.
Gently fold in the mixed berries and nuts, ensuring they are evenly distributed throughout the batter.
Heat a non-stick skillet over medium heat and lightly grease with cooking spray or coconut oil.
Pour about 1/4 cup of batter onto the skillet for each pancake. Cook for about 2-3 minutes or until bubbles form on the surface.
Carefully flip the pancakes and cook for an additional 2-3 minutes, or until golden brown and cooked through.
Once cooked, remove pancakes from the skillet and keep warm. Repeat with the remaining batter, adding more oil as needed.
Notes
Stack the pancakes high on a plate, drizzle with honey or syrup, and serve with a dollop of quark on the side.