Cut red bell pepper in half, remove seeds and stem, and slice into thin strips.

Combine red bell pepper, sour cream, mayonnaise, garlic, lemon juice, smoked paprika, and cumin in a blender or food processor.

Blend until smooth and creamy, scraping down sides as needed.

Taste and adjust seasoning with salt and pepper.

Transfer to a serving bowl or container. Serve immediately or refrigerate for later use (up to 5 days).