Peach and Blueberry Crumble

Ingredients

• 2 lbs firm, ripe peaches (about 6 - 8 peaches)
• 1 tsp lemon zest
• 1 Tbsp fresh lemon juice
• 1/2 cup granulated sugar
• 1/4 cup all-purpose flour
• 1 pinch salt
• 1 1/2 cups fresh blueberries 
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