Lay out wonton wrappers on a clean surface.
Place a spoonful of chocolate ganache in the center of each wrapper (don't overfill).
Brush the edges with water, fold over to form a triangle, and press firmly to seal.
Heat oil in a deep pan or fryer to 350°F (175°C).
Carefully place the chocolate-filled samosas into the hot oil, being careful not to overcrowd the pan.
Fry until golden brown and crispy, about 2 minutes per side. Drain on a paper towel-lined plate or a wire rack.
Let them cool for 5 to 10 minutes. Sprinkle with powdered sugar and drizzle with white chocolate if desired. Serve with vanilla sea salt cold foam for dipping!