01 - Whisk together all-purpose flour, sugar, baking powder, baking soda, and salt in a large bowl.
02 - In a separate bowl, beat whole milk, egg, melted butter, and vanilla extract until thoroughly combined.
03 - Pour wet ingredients into the dry mixture and gently blend until just combined, avoiding overmixing.
04 - Heat a nonstick skillet or griddle over medium heat and grease lightly with butter.
05 - Pour ¼ cup batter onto skillet per pancake. Cook until bubbles appear and edges set (about 2 minutes), then flip and cook an additional 1 to 2 minutes until golden brown. Repeat for remaining batter.
06 - Spread a generous tablespoon of chocolate hazelnut spread on each pancake as you stack them.
07 - Sprinkle chopped hazelnuts, dust with powdered sugar, and garnish with fresh berries if desired. Serve warm.