Heat oil to 375 F and line a large plate with paper towels.
In a wide-mouthed bowl, combine unflavored whey protein isolate (3/4 cup), salt (1 teaspoon), xanthan gum (1 teaspoon), and baking powder (2 teaspoons).
Add the soda water (6 tablespoons) and egg (1). Use a rubber spatula to fully incorporate.
Working in batches, use tongs to add a handful of green beans (1 pound) to the coating, then into the preheated oil.
Allow them to cook for about 3-4 minutes, you'll know they're done once golden.
Place fried green beans on the prepared paper towel-lined plate, and continue until you've fried all the green beans.
Serve immediately (as with most fried food, these get soggy over time) with ranch, and enjoy!
Notes
Frying Oil should have a high smoke point and mild flavor. Please keep in mind that all oils are low in carbs, but some are considered "healthier" based on polyunsaturated fats. If this is a concern to you, opt for avocado oil, or peanut oil (slightly higher). If not, vegetable or canola are great frying oils. I use peanut oil for frying.
Xanthan Gum is necessary for binding the ingredients of this recipe together, you CAN'T SKIP OR SUB!
Nutritional information will vary based on your whey protein powder. The information below was calculated using ISO Pure Whey Protein Isolate (zero carb), and doesn't include ranch: