Wash and dry potatoes, then cut into thick strips. In a medium bowl, toss potato strips with olive oil. Spread potatoes evenly on a parchment paper-lined baking sheet, leaving some space around each to allow them to crisp.
Bake for 10 minutes, then turn each strip over. Bake for another 10 minutes; flip over once more and bake for five minutes to finish crisping.
Meanwhile, make the aioli: Mix together mayonnaise, garlic and lime juice. (Tip: To cut back even more on the fat, use one part low-fat mayo to one part low-fat plain yogurt.) Season with salt and pepper, and place in a small dipping bowl.
Sprinkle fries with salt, pepper and thyme leaves. Serve with aioli dip.
Recipe Notes
Per serving: 285 calories, 3 g protein, 19 g fat (3 g saturated fat), 29 g carbohydrates, 3 g fibre, 7 mg cholesterol, 55 mg sodium