To make pretzel crumbs, either pulverize pretzels in a food processor or blender, or you could finely smash them in a plastic bag with a rolling pin.
This recipe was developed using regular grocery store strawberries, which is to say ones that aren't super sweet. If you have amazing perfectly ripe, sweet strawberries, you can reduce the amount of sugar in the pudding to just ½ cup.
Make sure to place enough strawberries to yield 2 cups of strawberry puree. You will need 16 ounces of strawberries after they have been hulled. That means you will likely use more than 1 quart of strawberries to yield 16 ounces. If you don't have a scale, you can measure out the amount of puree you get in a measuring cup to ensure it is 2 cups.
Use gluten-free pretzels to make this recipe gluten-free.