How to Make It
Cook pasta according to package directions; drain and keep warm.
Meanwhile, melt unsalted butter in a large skillet over medium-high. Add cherry tomatoes, and cook, stirring occasionally, until they start to burst and lose their juices, about 3 to 4 minutes. Add minced shallot and garlic, and cook, stirring occasionally, until fragrant, about 1 to 2 minutes. Stir in shrimp, and cook, stirring occasionally, just until shrimp are opaque, about 2 to 3 minutes. Sprinkle the tomato-shrimp mixture with salt and pepper, and stir in heavy cream. Cook, stirring occasionally, until the sauce thickens slightly, about 1 to 2 minutes. Stir in chopped fresh tarragon and cooked pasta, and serve immediately.