Berry Limoncello Tiramisu

Limoncello Simple Syrup

• 8 oz sugar
• 6 oz water
• 3 oz limoncello (liqueur)
  or 3 oz lemon juice, freshly squeezed

Mixed Berry Foam

• 1 lemon
• 5 oz sugar
• 16 oz frozen mixed berries
  or 16 oz frozen strawberries
• 2 egg whites (see Tip)
  or 4 oz aquafaba (chickpea liquid, canned)

Buttermilk Whipped Cream

• 2 oz sugar
• 20 oz heavy whipping cream, chilled
• 3 oz buttermilk (see Tip)
  or 3 oz heavy whipping cream, chilled
• 32 ladyfingers
• 8 oz fresh mixed berries, to serve