Rinse strawberries briefly in cold water. Remove hull. Drain well. Cut large fruits in half. Mix yogurt with juice of one lemon and sugar. Pour one tablespoon into each of four tall glasses. Top with a layer of strawberries sprinkled with sugar and ground hazelnuts. Repeat until the glasses are filled. Last layer of sugar and hazelnuts. Bring to the table cold.
Tip: Use a regular or light yogurt, yes, as needed!