Strawberry Slab Pie - The BakerMama

Ingredients

• 4 cups all-purpose flour
• 1 cup granulated sugar
• 1 teaspoon salt
• 1-1/2 cups (3 sticks) unsalted butter, softened
• 1/2 cup cold water
• 8 cups sliced fresh strawberries
• 1/2 cup granulated sugar
• zest of half a lemon
• 1 tablespoon lemon juice
• 1 egg beaten with 1 teaspoon water for egg wash
• 1 tablespoon granulated sugar, for sprinkling