01 -
In a skillet over medium-low heat, melt 15 grams of butter. Add thinly sliced onions and cook slowly, stirring occasionally, until soft, jammy, and golden brown, about 20 minutes.
02 -
Pour milk into a shallow dish and self-rising flour in another. Season flour with salt and pepper. Dip each steak into milk, then dredge thoroughly in flour, pressing lightly to coat evenly. Set aside on a plate.
03 -
Heat canola oil in a large skillet over medium-high until shimmering. Add coated steaks without crowding the pan. Fry for 2 minutes per side until a deep golden crust forms. Transfer to a wire rack to maintain crispness.
04 -
Butter one side of each Texas toast slice with remaining butter. Place toast butter-side down on a flat surface, top each with a fried steak, a generous portion of caramelized onions, and a slice of cheddar cheese. Cover with another slice of buttered toast, butter-side out.
05 -
Heat a clean skillet or griddle over medium heat. Cook sandwiches in batches, pressing gently with a spatula until toast is golden brown and cheese fully melts, about 3-4 minutes per side. Rest for one minute before slicing and serving.