Mix water, sugar, and yeast in a large bowl and let sit 10 minutes.: You should notice a faint yeasty, sweet aroma and tiny foam forming on the surface within about ten minutes, signaling active fermentation. This step ensures the active dry yeast is alive and ready to leaven the dough, and it sets the tone for a sturdy rise later. If no bubbles appear check the water temperature and yeast freshness as common causes for failure. Avoid adding salt at this stage, since it can inhibit yeast activity.
In a medium bowl, whisk the eggs, salt, and evaporated milk together.: The mixture will look smooth and slightly glossy, and you may detect a mild milky scent from the evaporated milk . This combination builds richness and helps the dough hydrate evenly, which improves tenderness. A common mistake is to under-whisk, leaving bits of uneven yolk that affect texture, so whisk until uniform but not frothy.
Add egg mixture to yeast mixture and mix.: Expect an immediate softening of the yeast mixture, with steam rising slightly if your liquids were warm. Stirring these together distributes flavors and begins gluten formation. If the mixture feels too wet, resist the urge to add extra flour right away; allow a few minutes for absorption. Overmixing at this point can toughen the final product.
Stir in 3 cups of bread flour. (A wooden spoon is good for stirring.): As you fold in the first portion of bread flour , the texture will shift from soupy to tacky, and you might hear a faint scraping sound as the dough pulls away from the bowl. This measured addition helps you control hydration, giving the dough the chance to form bonds gradually. Adding all the flour at once risks a dense, dry dough, so portioning matters.
Add shortening and stir it in. Stir in remaining flour.: When you work the shortening into the dough, it will create small, lubricated layers that contribute to tenderness. The dough should become more cohesive as you incorporate the remaining bread flour . If the shortening lumps, warm it slightly in your hands until it blends smoothly. Avoid overworking the dough here, which can develop too much gluten and make beignets tough.
Place dough on a lightly floured surface and knead until smooth.: Kneading brings the dough to a silky, elastic state and you will feel it change under your palms, becoming springy and less sticky. The sound of the flour rubbing will lessen as gluten develops. A common pitfall is kneading too long, producing a tight dough that resists puffing; aim for elastic and smooth, not overly firm.
Coat a large bowl with oil, place dough in bowl and cover with plastic wrap.: Toss a thin film of vegetable oil in the bowl so the dough can expand without sticking, and sealing it with plastic helps retain humidity. The enclosed environment encourages even rising and prevents a dry crust. If you skip the coating the dough may cling and tear during rise, impacting texture.
Let rise at least 2 hours or place in refrigerator overnight.: During this time the aroma becomes mildly fermented and the dough roughly doubles in size, with visible bubbles underneath the surface. A slow, overnight chill will deepen flavor and develop better structure, while a two hour rise is quicker for same day service. Avoid rushing with high heat, which can cause uneven fermentation and off flavors.
Pour about 3 inches of oil in a Dutch oven and heat to 350 degrees.: The oil should shimmer but not smoke; you will hear a faint sizzle when a small scrap of dough is tested. Maintaining a steady 350 degrees yields a crisp exterior and cooked center. Too low a temperature will make the beignets greasy, and too high will brown the outside before the middle cooks.
Roll dough to 1/4-inch thickness and cut 2-inch squares. (This is easy to do with a pizza cutter.): Rolling to a uniform 1/4-inch thickness gives consistent puff and frying time, and cutting into 2-inch squares ensures even cooking. A pizza cutter makes clean edges and speeds the process. If pieces vary in size you will get mismatched frying results, so aim for uniformity.
Working about 4 at a time, place in oil and fry, flipping continuously until they are golden brown.: When frying, listen for a lively sizzle and watch the surface turn an even golden brown; flipping keeps both sides uniform. The aroma will be rich and toasty as the exterior caramelizes. Avoid overcrowding which drops oil temperature and yields soggy beignets; keep batches small for consistent results.
Test one to make sure it is cooked through. Drain on paper towels and coat with powdered sugar.: Cut a test beignet to check for a fully cooked interior, which should be soft, airy, and free of raw dough. Drain briefly on paper towels to remove excess oil then toss in confectioners’ sugar while still warm so the sugar adheres and slightly melts into the surface. A common error is leaving them too long on the towel, which cools them and reduces sugar adhesion, so dust while warm.