Mawmaw's Simple Fried Green Tomatoes

Ingredients (6)

• + 4 firm green tomatoes, cut into 1/4-inch slices add to pantry
• + 1 quart ice water, or as needed add to pantry
• ✓ 1 cup canola oil, or as needed
• + 2 cups self-rising cornmeal add to pantry
• + 2 cups all-purpose flour add to pantry
• + salt to taste add to pantry