Meanwhile, heat sun-dried tomato oil (or olive oil) in a large nonstick skillet over medium-high heat. Add shallot and garlic; cook, stirring often, until the shallot is translucent, about 1 minute. Add sun-dried tomatoes, half-and-half, broth and salt. Bring to a simmer over medium-high heat. Reduce heat to medium; cook, stirring occasionally, until thickened and reduced slightly, 5 to 7 minutes.