INGREDIENTS
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1 Tablespoon butter
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1 bunch asparagus (about 1 pound)
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1 onion, roughly chopped
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2 cloves garlic
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4 cups vegetable broth
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1 medium potato, quartered or cubed in 6-8 chunks
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2 Tbsp greek yogurt (optional)
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salt, pepper
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Optional: 1 Tbsp parmesan for garnish