The Best Apple Crumb Cake Recipe

Name: The Best Apple Crumb Cake Recipe
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 3/4 cup all-purpose flour; 1/4 cup granulated sugar; 1 teaspoon baking powder; 3/4 teaspoon ground cinnamon; 1/8 teaspoon baking soda; 1/8 teaspoon salt; 1/4 cup + 2 Tablespoons of milk; 3/4 teaspoon pure vanilla extract; 1/4 cup + 2 teaspoons vegetable or canola oil; 1 large egg; 2 to 3 medium apples (washed, peeled, cored and sliced ( I used Red Delicious and Golden Delicious)); 2 Tablespoons granulated sugar; 1/2 teaspoons ground cinnamon; 1 Tablespoon apple cider vinegar; 1/3 cup packed light brown sugar; 1/3 cup granulated sugar; 1 teaspoon ground cinnamon; 1/2 teaspoon salt; 1/2 cup unsalted butter (melted and cooled); 1 and 1/2 cup all-purpose flour