I can't get sourcream here in Greece, but I found this substitute on the internet!
Serving Size: 1 (448) g
Servings Per Recipe: 1
Calories: 207.8
Calories from Fat 183 g 88 %
Total Fat 20.3 g 31 %
Saturated Fat 12.7 g 63 %
Cholesterol 69.6 mg 23 %
Sodium 49.9 mg 2 %
Total Carbohydrate 4.2 g 1 %
Dietary Fiber 0 g 0 %
Sugars 0.5 g 2 %
Protein 3.1 g 6 %