Spicy Shrimp Tostada Cups

By Emma
Certified Culinary Professional
Ingredients
- 12 corn tortillas
- 2 ripe avocados
- 2 tablespoons sour cream
- 2 medium plum tomatoes diced
- 1⁄3 cup finely chopped red onion
- 1 tablespoon hot sauce (your choice; I use Cholula or Valentina)
- 2 tablespoons fresh lime juice plus extra wedges
- 1⁄4 teaspoon fine sea salt
- 1 tablespoon vegetable oil
- 24 medium peeled and deveined shrimp
- 1 tablespoon smoked paprika (substitute for chili powder)
- 1 cup shredded iceberg or romaine lettuce
- optional garnish Maldon sea salt or chile powder
About the ingredients
Method
Tostada Cups
- Oven to 345°F—slightly lower keeps tortillas from over-browning before crisping. Lightly oil each well plus spray scent-free oil on bottom of a second cupcake tin to weight them down.
- Wrap 6 tortillas in damp paper towels. Microwave 12 seconds tops to loosen pliability—the tortillas should bend, not crack.
- Cut a slit halfway through each to let edges overlap snug into muffin cups. Press and fold carefully, no rips; fold one outside edge under if needed for perfect cup shape. Set next 6 and repeat.
- Cover gently with second oiled cupcake tin to stop tortilla springing back during baking.
- Bake 13 to 18 minutes; watch for toasty edges, slight golden blush on surfaces. Crisp but not burnt—tortillas darken fast after this stage.
- Remove, let cool in tins to keep shape. If soggy, toast quickly in dry pan or oven later for crunch revival.
Guacamole Mix
- Halve avocados, scoop, mash coarse with sour cream—no blender, keep texture. Sour cream tames avocado oiliness and adds tang. Perfect substitute: Greek yogurt.
- Fold in diced tomatoes, chopped onion, hot sauce, 2 tablespoons lime juice and salt. Taste for balance—a bit more lime if too bland; more hot sauce if mild.
- Set aside but refrigerate only briefly to avoid browning.
Spicy Shrimp Sear
- Heat oil in skillet over medium heat—oil shimmering but not smoking.
- Toss shrimp with smoked paprika (why smoked? It’s richer, earthy, better for shrimp’s sweetness). Season lightly with salt.
- Add shrimp; hear that immediate sizzle? Stir often to cook evenly.
- Shrimp will turn pink and curl—key visual cue—about 4-6 minutes depending on size. Overcook and it’s rubber city. Under cook and it’s mushy. Use smell too: shrimp smell sharp and briny when close.
- Remove and drain on paper towels.
Assembly
- Put a handful shredded lettuce in each cup—bed for moisture and crunch contrast.
- Dollop guacamole, spreading gently but keep thickness for creaminess layers.
- Add 2 shrimp per cup, nestle carefully so cups don’t collapse.
- Spritz with fresh lime juice from wedge and dust lightly with chile powder or flaky sea salt.
- Eat immediately; cups hold shape and crunch best fresh. Leftover stored will soften.
Notes
- Microwaving tortillas just before shaping makes all the difference in neat cups; cold or dry will crack.
- If you don’t have muffin tins, gently fold tortillas in foil cups to bake but shape less precise.
- Sour cream swap: plain yogurt or crema if available for milder tang.
- Hot sauce: any favorite will work, just adjust intensity.
- Shrimp: peeled and deveined frozen works too, thawed fully, pat dry for proper sear.
- Watch shrimp carefully—they go from perfect to tough fast.
- Paprika smoked or sweet, chili powder, cayenne all valid but play with intensity. My experience? Smoked paprika nails complexity without too much heat.
- Oven times vary; always check early.
- Cups can be prepped early but assembly right before serving.
- Leftovers soggy? Toast cups alone for few minutes to resurrect crunch but guac best made fresh.
Cooking tips
Chef's notes
- 💡 Microwave tortillas wrapped in damp paper towels briefly. Too long and they get stiff, crack when folding. Too short and cups won’t shape right. Watch that pliability like a hawk. Fold sharply but gentle enough to avoid rips. If the edges don’t overlap snugly, cups lose form and leak ingredients later.
- 💡 Use sour cream in the guacamole mix to tame avocado oiliness without drowning flavor. Greek yogurt or crema work well too but shift the tang. Keep guac chunky, no blender. Texture adds bite and keeps moisture from making tortillas soggy too fast when assembled.
- 💡 For shrimp, dry thoroughly before seasoning. Water on surface prevents crisp sear, ends in steam, chewy texture. Heat oil until shimmer but avoid actual smoke point. Smoked paprika adds a nuttier warmth than chili powder; doesn’t overpower shrimp sweetness. Stir often but gently to avoid breaking the flesh.
- 💡 Oven temp matters. 345°F is lower than usual but helps avoid burnt spots on tortillas. Use second cupcake tin on top to weight shells, stop them popping edges up. Start checking crispness around 12 minutes. Press center lightly; soft means longer bake. Toast soggy cups later in dry pan or oven for crunch revival.
- 💡 Assemble quickly. Lettuce bed soaks excess avocado oil, keeps bottom crisp. Dollop guacamole thick, don’t spread thin or it leaks out. Shrimp nests on top careful, two per cup. Fresh lime juice spritz brightens, balances fat. Dust with chile powder or flaky Maldon sea salt for texture contrast. Eat fast; leftover cups soften quickly.
Common questions
Can I use plain yogurt instead of sour cream?
Yes but tang shifts a bit sharper. Creaminess drop too. Greek yogurt or crema smoother. Adjust lime juice if tang feels off. Refrigerate briefly to keep bright green; goes brown fast otherwise.
Best way to tell shrimp is done?
Pink, curled tight but not too tight. Smell sharp, briny smell. Firm flesh springs back on poke. Avoid overcooking–shrimp turn rubbery quick. Stir often but gently helps even cook, stops browning spots.
What if tortillas crack when folding?
Usually too dry or cold. Re-microwave wrapped briefly or cover with damp towel while working. Stale tortillas snap no matter length. Fresh needed for clean fold. Foil cups okay but shape less defined.
How to store leftovers without soggy shells?
Keep components separate if possible. Tostada cups alone toasted briefly revive crisp. Guac best fresh but refrigerate tight-lid short term. Lettuce wilts fast, add fresh if leftovers planned.