Using ingredient individual berries block with no sugar partially defrosted but firm

Pan-sized Lemon-blackberry Pancakes With Citr

• 10 in nonstick skillet over heat
• 8 blackberries (frozen)
• 2 eggs (separated)
• 1 batter being sure to get even amount of berries in pancake (into pan)
• 1 lemon zest (finely minced)
• 1 individual berries block with no sugar partially defrosted but firm (not frozen)
• 1/2 egg whites batter to lighten i (into)
• 425 ml milk
• 400 gr sugar
• 280 gr flour