Heat oven to 275 F. Line a cookie sheet pan with parchment paper.
In a bowl, combine Seven Sundays Muesli and egg whites until well distributed. Set aside.
In a separate bowl, mix pumpkin seeds, coconut, sesame seeds, chia seeds, sea salt and dried cherries. Set aside.
In a medium saucepan, combine remaining ingredients; whisk over medium heat until sugar is dissolved and mixture is emulsified. Remove from heat.
Mix muesli with seed and fruit mixture. Pour in sugar mixture and stir with a spatula until well coated.
Pour onto the prepared sheet pan and press into an oval shape that is ⅓-inch thick, pressing down to keep the mixture together. Note: The mixture should not fit the pan entirely or it will be too thin.
Bake for 40 minutes. Cool completely at room temperature. Once cool, break into large chunks and store in an airtight container for up to 2 weeks.