Place the potatoes and onion in a large kitchen towel and squeeze out any excess moisture. Add to a large mixing bowl along with the bread crumbs, eggs, cheddar cheese, herbs, and a large pinch each of salt and pepper. Mix to evenly combine. Heat a few tablespoons of olive oil in a large skillet over medium heat. When the oil shimmers, scoop about 1/4 cup of the potato mix and add to the pan, flattening down with a spatula. Work in batches of 3-4 and cook 4-5 minutes per side or until deeply golden brown and crisp. Transfer to a wire cooling rack and sprinkle with flaky salt. Serve immediately with applesauce and/or Greek yogurt.: As you press the grated potatoes and grated onion in the towel, you will feel the cool, starchy liquid leaving the vegetables, and the pile will become noticeably drier and firmer, which is exactly what you want. This drying step is essential because excess moisture steams the latkes in the pan rather than allowing a crisp crust to form, so take your time and squeeze until only a faint dampness remains. If you skip this, the batter will be loose and the latkes will fall apart in the skillet, so avoid rushing through this step.
Add to a large mixing bowl along with the bread crumbs, eggs, cheddar cheese, herbs, and a large pinch each of salt and pepper: When you combine the dried potatoes and onion with the panko bread crumbs , beaten eggs , shredded cheddar cheese , and chopped herbs , you should notice a more cohesive, slightly tacky mixture that holds together when pressed. The eggs and panko bind the components, while the cheese and herbs distribute flavor evenly. Mix gently so you do not overwork the batter, which can lead to dense latkes; if the mixture seems too wet after thorough mixing, add a touch more panko bread crumbs .
Mix to evenly combine: As you fold the ingredients, watch for little pockets of cheddar cheese and flecks of herbs spreading through the batter, and smell the savory, herby aroma coming together. This even distribution ensures each latke has a balance of texture and flavor, and it also influences how they brown in the pan. Avoid vigorous stirring which can break down the shredded potatoes , diminishing the textural contrast between crispy exterior and tender interior.
Heat a few tablespoons of olive oil in a large skillet over medium heat: When the extra virgin olive oil shimmers in the pan and just begins to ripple, that is the right moment to add the batter. The oil temperature contributes directly to browning, producing a satisfying sizzle and the aroma of toasted potato and cheese. If the oil is too cool, the latkes will absorb oil and become greasy, while oil that is too hot will burn the exterior before the inside cooks, so adjust the flame to maintain a consistent medium heat.
When the oil shimmers, scoop about 1/4 cup of the potato mix and add to the pan, flattening down with a spatula: As you drop each scoop into the skillet, listen for a brisk sizzle, and then flatten gently to form an even round; this encourages even browning and a compact interior. The edges will begin to firm and take on color after a minute or two, and you should see small bubbles and browning along the rim. If you press too hard you can make them overly dense, so press just enough to form contact with the oil.
Work in batches of 3 to 4 and cook 4 to 5 minutes per side or until deeply golden brown and crisp: Cooking in batches prevents overcrowding, which would lower the oil temperature and cause steaming instead of frying, so keep the pan to a few latkes at a time. After the first side turns golden and releases easily, flip to the second side; the sound of steady sizzling and the sight of an even deep golden color tell you they are ready. A common mistake is flipping too often, which interrupts browning and prevents a uniform crust.
Transfer to a wire cooling rack and sprinkle with flaky salt: Moving finished latkes to a wire rack allows air circulation so they stay crisp rather than soggy, and the flaky salt on the surface enhances the savory peaks, giving bright hits of salinity. The contrast between crunchy exterior and tender middle is most pronounced when they are allowed to rest briefly, so avoid stacking them, which traps steam and softens the crust.
Serve immediately with applesauce and or Greek yogurt: Serving while still warm preserves the signature contrast of textures and lets the melted pockets of cheddar cheese soften pleasantly. A spoonful of cool plain greek yogurt adds tang that lightens the richness, and apple sauce offers a sweet counterpoint if you prefer that route. If you must hold them longer, keep them on a rack in a low oven as noted in the notes, but be aware they will gradually lose some crispness over time.